Hello Adolf,

thank you - this was the patch I was missing the other day. :-)

Reviewed-by: Peter Müller <peter.mueller(a)ipfire.org>

Thanks, and best regards,
Peter Müller

> -Addition of patch to ghoscript as freetype version 2.10.3 and later
> 	have withdrawn a macro that ghostscript used. Confirmed that without
> 	the patch ghostscript failed to build due to the lack of the
> 	FT_CALLBACK_DEF() macro. The fix is to explicitly declare the
> 	callbacks file static.
> - Update lfs to apply patch
> - Add patch to src/patches
> 
> Signed-off-by: Adolf Belka <adolf.belka(a)ipfire.org>
> ---
>  lfs/ghostscript                               |  3 +-
>  ...K_DEF-with-Freetype-2.10.3-and-later.patch | 50 +++++++++++++++++++
>  2 files changed, 52 insertions(+), 1 deletion(-)
>  create mode 100644 src/patches/ghostscript-drop-use-of-FT_CALLBACK_DEF-with-Freetype-2.10.3-and-later.patch
> 
> diff --git a/lfs/ghostscript b/lfs/ghostscript
> index edf019f5d..696f95b29 100644
> --- a/lfs/ghostscript
> +++ b/lfs/ghostscript
> @@ -32,7 +32,7 @@ DL_FROM    = $(URL_IPFIRE)
>  DIR_APP    = $(DIR_SRC)/$(THISAPP)
>  TARGET     = $(DIR_INFO)/$(THISAPP)
>  PROG       = ghostscript
> -PAK_VER    = 6
> +PAK_VER    = 7
>  
>  DEPS       = cups dbus libtiff
>  
> @@ -83,6 +83,7 @@ $(subst %,%_MD5,$(objects)) :
>  $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
>  	@$(PREBUILD)
>  	@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar axf $(DIR_DL)/$(DL_FILE)
> +	cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/ghostscript-drop-use-of-FT_CALLBACK_DEF-with-Freetype-2.10.3-and-later.patch
>  	cd $(DIR_APP) && rm -rf expat freetype icclib jasper jpeg jpegxr \
>  		lcms lcms2 libpng openjpeg zlib cups/libs
>  	cd $(DIR_APP) && \
> diff --git a/src/patches/ghostscript-drop-use-of-FT_CALLBACK_DEF-with-Freetype-2.10.3-and-later.patch b/src/patches/ghostscript-drop-use-of-FT_CALLBACK_DEF-with-Freetype-2.10.3-and-later.patch
> new file mode 100644
> index 000000000..78014667d
> --- /dev/null
> +++ b/src/patches/ghostscript-drop-use-of-FT_CALLBACK_DEF-with-Freetype-2.10.3-and-later.patch
> @@ -0,0 +1,50 @@
> +From 41ef9a0bc36b9db7115fbe9623f989bfb47bbade Mon Sep 17 00:00:00 2001
> +From: Chris Liddell <chris.liddell(a)artifex.com>
> +Date: Tue, 20 Oct 2020 09:49:45 +0100
> +Subject: [PATCH] Bug 702985: drop use of FT_CALLBACK_DEF() def
> +
> +From 2.10.3, Freetype disappeared the FT_CALLBACK_DEF() macro, which is what
> +we used when defining our callbacks from Freetype.
> +
> +No guidance forthcoming from the Freetype developer who made those changes,
> +so change to explicitly declaring the callbacks file static.
> +
> +Should fix the reported build failures.
> +---
> + base/fapi_ft.c | 6 +++---
> + 1 file changed, 3 insertions(+), 3 deletions(-)
> +
> +diff --git a/base/fapi_ft.c b/base/fapi_ft.c
> +index 65fa6dcf4..21aef2f06 100644
> +--- a/base/fapi_ft.c
> ++++ b/base/fapi_ft.c
> +@@ -125,7 +125,7 @@ static void
> + delete_inc_int_info(gs_fapi_server * a_server,
> +                     FT_IncrementalRec * a_inc_int_info);
> + 
> +-FT_CALLBACK_DEF(void *)
> ++static void *
> + FF_alloc(FT_Memory memory, long size)
> + {
> +     gs_memory_t *mem = (gs_memory_t *) memory->user;
> +@@ -133,7 +133,7 @@ FF_alloc(FT_Memory memory, long size)
> +     return (gs_malloc(mem, size, 1, "FF_alloc"));
> + }
> + 
> +-FT_CALLBACK_DEF(void *)
> ++static void *
> +     FF_realloc(FT_Memory memory, long cur_size, long new_size, void *block)
> + {
> +     gs_memory_t *mem = (gs_memory_t *) memory->user;
> +@@ -153,7 +153,7 @@ FT_CALLBACK_DEF(void *)
> +     return (tmp);
> + }
> + 
> +-FT_CALLBACK_DEF(void)
> ++static void
> +     FF_free(FT_Memory memory, void *block)
> + {
> +     gs_memory_t *mem = (gs_memory_t *) memory->user;
> +-- 
> +2.17.1
> +
>